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Igniter and Ignition Device for Downhole Setting Tool Power Charge

a technology of ignition device and setting tool, which is applied in the direction of earth drilling, drilling machine and method, and wellbore/well accessories, etc., can solve the problems of time-consuming and potentially costly operation of removing one setting tool and one hundred devices from the wellbor

Active Publication Date: 2019-05-02
BAKER HUGHES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides an improved ignition device for downhole setting tools that overcomes certain problems and disadvantages. The invention involves an igniter connected to a power charge through an ignition device that is actuated upon receipt of an electrical signal. The igniter may be embedded in the power charge or connected to its uphole end, and the ignition device may be positioned within a cavity in the ignitter. The igniter may comprise thermite, a metal and an oxidizer, or other similar materials. The invention allows for safer and more reliable detonation of the power charge in downhole setting tools.

Problems solved by technology

However, even if conventional setting tools are 99% reliable, the removal of one setting tool and device out of one hundred from the wellbore is a potentially costly and time consuming operation.

Method used

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  • Igniter and Ignition Device for Downhole Setting Tool Power Charge
  • Igniter and Ignition Device for Downhole Setting Tool Power Charge
  • Igniter and Ignition Device for Downhole Setting Tool Power Charge

Examples

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Embodiment Construction

[0020]FIG. 1 shows an embodiment of a setting tool 100 that includes a power charge 150. The detonation of the power charge 150 is used to set a downhole device, such as a bridge plug or packer, in a wellbore as would be appreciated by one of ordinary skill in the art having the benefit of this disclosure. The setting tool 100 includes a first housing 110, which may be referred to as a firing head, and an adapter or sub 130 positioned between the first housing 110 to a second housing 140. Alternatively, the first and second housing 110, 140 may be configured to connect together and retain the power charge 150 without an adapter or sub 130 as would be appreciated by one of ordinary skill in the art having the benefit of this disclosure.

[0021]A power charge 150 is positioned within a chamber 145 within the second housing 140. The power charge 150 includes an uphole end 151, a downhole end 152 (shown in FIG. 2), and an outer housing 155. The downhole end (not shown) of the second housi...

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Abstract

A downhole setting tool having a first housing, a second housing having a chamber connected to the first housing, a power charge positioned within the chamber, an igniter connected to a portion of the power charge, and an ignition device connected to the igniter. The ignition device is configured to actuate upon receipt of an electrical signal. The ignition device is configured to ignite the igniter. The ignition device may rapidly heat up or apply a voltage or current to the igniter. The igniter is configured to cause the detonation of the power charge to set a device within a wellbore. The igniter may be embedded into the power charge with the ignition device positioned within a cavity in the igniter. The igniter may be a pyrotechnic material or may release high energy heat upon application of voltage or current.

Description

FIELD OF THE DISCLOSURE[0001]The embodiments described herein relate to an igniter and ignition device for a power charge for downhole setting tools and methods of using the same.BACKGROUNDDescription of the Related Art[0002]A downhole setting tool may use a power charge to set a device within a wellbore. The power charge is detonated to generate the force required to set the device. For example, the force from the detonated power charge may move a piston causing the setting of the device. The power charge of the downhole setting tool may be used to set various devices in a wellbore as would be appreciated by one of ordinary skill in the art. For example, a downhole setting tool with a power charge may be used to set bridge plugs, cement retainers, packers, and various other downhole devices.[0003]An electrical signal is typically sent down a conduit to the setting tool to actuate a primary igniter in the firing head of the setting tool. The actuation of the primary igniter is used ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F42D1/22F42D1/045E21B7/00
CPCF42D1/22F42D1/045E21B7/007E21B23/065E21B23/0414E21B23/042
Inventor HARRINGTON, KEVIN EDGARPALMER, LARRYXU, ZHIYUEXU, YINGQINGZHAO, LEIMEYER, KENT
Owner BAKER HUGHES INC
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